(1) La lumière des étoiles devrait être évidente, la position doit être centrée, et il ne devrait y avoir aucun rayon manquant. (2) La lumière des étoiles est claire, ce qui donne aux gens l'impression que cela vient de l'intérieur de la pierre précieuse, plutôt que de flotter à la surface de la courbe (c'est-à-dire des nouilles aux œufs) gemme. Parce que la lumière naturelle des étoiles rouge et […]
Archives par catégorie: NOUVELLES
D'après le point de vue gemmologique, le terme saphir fait spécifiquement référence aux pierres précieuses de corindon bleu. Autres pierres précieuses bleues qui ne sont pas du corindon (A1203) composants, peu importe à quel point ils sont mignons, ne devrait pas être appelé “saphirs”. On peut l'appeler “gemme bleue” ou “pierre bleue XX”. Par exemple, le diamant bleu peut être appelé “diamant bleu”. […]
In pegmatite, although the crystal has enough space for growth, the possibility of proper pigment ions, especially Cr ions, entering the lattice is very small, while Fe and Ti ions may enter the lattice. Donc, the chance of finding rubies in pegmatite is extremely small, while it is possible to find sapphires. In basalt, there […]
(1) Emerald-emerald green beryl containing chromium, (2) Aquamarine-iron-containing sky blue to sea blue beryl. (3) Golden emerald-golden yellow beryl containing iron, (4) Dark brown emerald-ilmenite beryl with starlight effect. (5) Rose emerald-beryl containing cesium, lithium or manganese. Le nom “émeraude” comes from the transliteration of Persian Zumurud. Dans mon pays ancien, it was called “Zumurud” […]
When the ancient Roman scholar Pliny commented on emeralds, il a dit: “Indeed, no gemstone has a more pleasing color, and emeralds always emit a soft and rich brilliance, which makes people never tire of it.” In addition, the production of emeralds in the world is extremely rare (much less than the production of diamonds). According […]
There are four main economic evaluation conditions for emeralds, à savoir: ①Color: emerald green and dark green are better, greenish blue and yellowish ones are inferior; ②Transparency: limpide, clear and bright is the best, translucent Those who can only be included in the third grade; ③Purity: emeralds are often flawed, pure ones are rare and […]
(1) Complex composition: Tourmaline is an extremely complex boro-aluminosilicate mineral, and it is the gem mineral with the most complex chemical composition in nature. It may contain one or several elements such as magnesium, fer, lithium, potassium, sodium, etc.. Due to the different content ratios of these elements, tourmaline often has different colors. Tel que […]
Opal has many names, mainly “white gem” et “fancy stone”. In the south of my country, ça s'appelle “flashing mountain cloud”, which comes from Australia’s famous producing area “Lightning Ridge”. Opal is listed as the birthstone of October by the international jewelry industry, symbolizing hope and happiness. Opal is the most colorful of gemstones. […]
lue Nile Gold We carry jewelry that’s crafted in both 18k and 14k gold. Notre or 18K est un alliage de 75% or avec d'autres métaux pour le rendre suffisamment fort pour l'usure quotidienne, Et notre or 14K est un alliage de 58.3% or et autres métaux. The minimum karat that is allowed to be […]
Gold Karat Chart 24 karat = 100% or 22 karat = 91.7% gold Both 24k and 22k are considered too soft for fine jewelry, though prized and worn in some cultures. 18 karat = 75.0% gold Considered to be the luxury end of fine jewelry. 14 karat = 58.3% gold Ideal for fine jewelry, balancing […]